All I can suggest is that, as far as I know all Grivel picks available fit all there tools, minus the Monsters. The geometry of Taks is not that different from their other tools. Probably, at most, just a little change in your style. The Evolution picks always seemed fragile to me. Mario

The Taa-k-oons use either the Cascade or Mixte. The other blades will fit but it's going to seriously affect the geometry of the tool. And by seriously I mean in a bad way. Buy the Mixte if you want a stronger pick.